Hennessey claims that a prototype version of the Venom F5 is ready to begin testing sometime in 2019 with the goal of hitting 311 mph. Notice that Hennessey is overshooting the unicorn speed of 300 mph? That’s because the company believes that the F5 is capable of going well beyond the threshold number. Once the prototype version of the Venom F5 is ready to test its worth in the heavily anticipated top speed wars, we’ll know for sure if it can back up the hype surrounding its 1,600-horsepower bullet.